FLY Security Notice
Published Date: 10/15/2026
Version: 1.0
Executive Summary
A security update is available for FLY that resolves a High-severity vulnerability. Customers using affected versions should upgrade as soon as possible.
Advisory Details
Severity: High
Affected Versions: Version 4.13.5 and earlier, unless the 4.13.5 hotfix has been applied
Resolved Version: Version 4.13.5 with the security hotfix applied
The update addresses a vulnerability related to input validation. Additional technical details are limited to reduce the risk of exploitation.
Suggested Actions
Customers running FLY Server versions that are affected are highly recommended to take the following step as soon as possible to mitigate the risk:
Mitigation Option: Perform Application Hotfix
Install FLY Server hotfix. Hotfix link below:
- FLY Server 4.13.5 hotfix: FLY Server Hotfix
NOTE: If your instance of FLY Server has an environment specific hotfix applied or if you are not certain whether it does, please contact our technical support staff at support@avepoint.com to confirm appropriate upgrade or manual work-around steps.
AvePoint implements best-in-class techniques for identifying, protecting, and detecting cybersecurity threats. The information security and data privacy of our customers is AvePoint’s highest priority. If you have any questions about this and/or you are contacted by anyone else about this issue, please contact our security team immediately at security@avepoint.com.
For your additional information please find AvePoint’s reporting policy and response plan: https://www.avepoint.com/company/vulnerability-reporting-policy